VS1002D ADPCM RECORDING INSTRUCTIONS v 1.0
(C) 2004-09-23 VLSI SOLUTION OY
This is a software package to patch VS1002d ADPCM RECORDING
capability. It is explained in VS10XX Application Notes,
available at http://www.vlsi.fi/download/
See also source code src/microcontrol.c for example.
* This file is part of DigitalWatch, a free DTV watching and RECORDING
* program for the VisionPlus DVB-T.
*
* DigitalWatch is free software you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation either version 2 of the License, or
* (at your option) any later version.
* This file is part of DigitalWatch, a free DTV watching and RECORDING
* program for the VisionPlus DVB-T.
*
* DigitalWatch is free software you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation either version 2 of the License, or
* (at your option) any later version.
Digitemp Junior – An RS-232 Port-Powered Digital Thermometer
Digitemp Jr. is a device that is designed to measure
and report ambient temperature. When connected to
an RS-232 port on any PC, it will periodically measure
and report in ASCII form the ambient temperature in
degrees Celsius. These temperature readings can be
monitored with any terminal program. If the terminal
program supports capture to disk, the temperature
readings can be saved to disk for further analysis with
a spreadsheet program or other data analysis tool. The
simple ASCII output format of Digitemp Jr. makes it rel-
atively easy to write custom software for receiving,
RECORDING, and analyzing ambient temperature data.
Best of all, Digitemp Jr. requires no external power sup-
plies or batteries. It is powered directly by the RS-232 port.
Digitemp Jr. is a device that is designed to measure
and report ambient temperature. When connected to
an RS-232 port on any PC, it will periodically measure
and report in ASCII form the ambient temperature in
degrees Celsius. These temperature readings can be
monitored with any terminal program. If the terminal
program supports capture to disk, the temperature
readings can be saved to disk for further analysis with
a spreadsheet program or other data analysis tool. The
simple ASCII output format of Digitemp Jr. makes it relatively
easy to write custom software for receiving,
RECORDING, and analyzing ambient temperature data.
Best of all, Digitemp Jr. requires no external power supplies
or batteries. It is powered directly by the RS-232
port.
設計一種基于AT89C52的語音錄放系統，利用單片機、ISD2560語音錄放器件、麥克風、揚聲器等元器件實現硬件電路的設計，并利用C51高級語言設計ISD2560器件控制字的寫入和定時中斷程序。經軟硬件調試，結果表明該系統錄放效果良好，具有一定的工程實用價值。
Abstract:
Voice RECORDING and playback system based on AT89C52is designed in this paper.Using the single-chip microcomputer，voice RECORDING and playback chip ISD2560，microphone and speaker to realize the hardware circuit design.Writing ISD2560control words and timing interrupt procedures are designed by C51advanced language.Through the hardware and software test,voice RECORDING and playback system play better voice,and this system has some engineering practical values.
